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2012 GMC Sierra Power Programmers & Performance Tuners

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Hypertech 2012 GMC sierra 1500 Sle

Reviewed By Donnie B (Coats, NC) Reviewed for a 2012 GMC Sierra —4/9/2015 8:11 PM

I will have to say I was a little undecided on what tuner to get and what not to get and I put the Hypertech on my 2012 GMC Sierra 1500 SLE 4x4 6 1/2 inch lift on 35/12.5/20 and I programmed it for premium fuel and I get a lot more hp and I got about 50 more miles out of my tank of gas and the truck all around runs better and faster..

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Range Active Fuel Management Disable Device Reviews


Best of BOTH worlds...

Reviewed By Jon R (Wichita Falls, TX) Reviewed for a 2012 GMC Sierra —3/18/2015 8:54 PM

Our 2012 GMC Sierra 5.3L truck drives totally different now! Much improved drivability & untraceable full-time V8 if our GM dealer ever checks on it. In just under 2 weeks of driving our MPG has gone UP 0.2 already! This is 90% in town driving too! Also, this device does NOT interfere with the smart phone remote start, lock/unlock, vehicle info functions. Leaving the Range plugged in 24/7, will block the monthly OnStar diagnostic report. So just unplug when vehicle sits unused...

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DiabloSport inTune I-1000 Tuner Reviews


Great product

Reviewed By Jimmie L (Nacogdoches, TX) Reviewed for a 2012 GMC Sierra —3/13/2015 5:43 PM

Hooked it up to my truck today and installed one of the canned tunes. Will be getting a custom tune in the future. This is a great product sold by a great company!

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